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Advantages and Disadvantages of Solar Energy 150 150 SchoolTutoring Academy

Advantages and Disadvantages of Solar Energy

Solar energy is a renewable and a never energy resource. There are many advantages of harnessing solar energy. However, there are two sides to everything, and there is a list of disadvantages to accompany the list of advantages. Advantages Solar energy is a completely renewable resource which means that even when we cannot make use…

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Solar Energy and its Applications 150 150 SchoolTutoring Academy

Solar Energy and its Applications

Energy from sun can be categorised in two ways: in the form of heat and light. We use the solar energy every day in many different ways. When we hang laundry outside to dry in the sun, we are using the solar heat to dry our clothes. Plants make their food in the presence of…

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Earth’s Rotation Basics 150 150 SchoolTutoring Academy

Earth’s Rotation Basics

Rotation is defined as a circular movement of an object around a center or point of rotation. A three-dimensional object rotates always around an imaginary line called a axis of rotation. The earth rotates about an axis of rotation that passes through the North and South Poles of the planet. The Earth’s axis is tipped over…

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Classification of Living and Non-living Things 150 150 SchoolTutoring Academy

Classification of Living and Non-living Things

The world around us is filled with variety of things. We see so many different things every day. Inside our house or school we see furniture, electronics, food, drinks, birds, books, plants, etc. These things can be classified as living or non-living. Things like soil, sun, water and air occur in nature and called as…

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Earth Sciences: Types of Landforms 150 150 SchoolTutoring Academy

Earth Sciences: Types of Landforms

The surface of earth is a collaboration of the various physical features. These natural physical features on the earth’s surface called as landforms.  Landforms are defined as the natural physical features found on the surface of the earth created as a result of various forces of nature such as wind, water, ice, and movement of…

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English Grammar – Degree of Comparison 150 150 SchoolTutoring Academy

English Grammar – Degree of Comparison

The positive degree of an adjective is its simple form. It is used to denote the mere existence of some quality. Adjectives in the positive degree are used when no comparison is made.  The degree of comparison of an adjective describes the relational value of one thing with something in another clause of a sentence.…

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Total Internal Reflection 150 150 SchoolTutoring Academy

Total Internal Reflection

The wave changes direction when passing from one medium to other due to change in the speed. This phenomenon is called as refraction. The change in direction of the wave can be quantified using the refractive indexes of the two materials. When a ray passes from denser medium (medium with higher refractive index) to rarer…

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Refraction and Snell’s Law 150 150 SchoolTutoring Academy

Refraction and Snell’s Law

The speed of a waves changes when it passes from one medium to another and it bends. This bending of a wave when it enters a medium where its speed is different is called Refraction. The bending of a wave depends on refractive index of the medium and the angle between the ray and the…

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Physics: Reflection and Laws of Reflection 150 150 SchoolTutoring Academy

Physics: Reflection and Laws of Reflection

Reflection may be defined as change in direction of wave at an interface between two media so that the wave bounces back in the same media from which it originated. Light, sound and water waves show the phenomenon of reflection. The refection of visible light allows us to see the objects from which it is…

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Causes of Erosion 150 150 SchoolTutoring Academy

Causes of Erosion

Erosion is a naturally occurring process by which materials are removed from the surface and transported to another location. It usually occurs due to transport by wind, water, or ice; by down-slope creep of soil and other material under the force of gravity; or by living organisms, such as burrowing animals. Causes of Erosion Rainfall…

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